SRAM XX1 Eagle Drive Train Trigger Shifter Upgrade Kit, Black

5 pieces (SRAM XX1 Eagle 12-Speed Trigger Shifter with Discrete Clamp, Black, XX1 Eagle Boost crankset, XG-1295 Eagle, 10-50 12 Speed Cassette, Black, PC-XX1 Eagle Hollow-Pin chain, and XX1 Eagle 12-Speed Type 3 Rear Derailleur). Needed Items: Bottom Bracket